Inclosed-arc lamp.



Patented July 9, |90L C. H. WAY.

INCLOSED ABOLAMP.

(Application filed June 16, 1900.) (No Model.) 4 $heots8heet l.

\Vltlgesses. 744. @M @3222 (a 5M4 ma Noam: PETERS cu. rmm'o-uwov WASNINGTON, a. c

No. 678,208. Patented luly 9, l90l..

C. H. WAY.

INCLOSED ARC LAMP.

(Application filed June 16 1900.) no Model.) 4 Sheets-Sheet z.

Witgesses: 9 2

No. 678.208. Patented July 9, I90l.

C. H. WAY.

INCLOSED ARCL'AMP.

(Application filed June 18, 1900. (No Model.) 4 Sheets-Sheet 3.

ton,

No. 678,208. Patented July 9, l90l.

C. H. WAY. INCLOSED ARC LAMP.

(Application filed June 16, 1900.; (No Model.) 4=Sheets-Sheet 4.

Witrgesses: llgvegton, J ymgwz (8,22 4LM By r ma Nrmms PEIERS no. wowumo" wAsmMuToN. .c.

UNITED STATES PATENT OEErc-E.

CHARLES H. WAY, OF LANSING, MICHIGAN.

I'NC LOSED-ARC LAIVI P.

SPECIFICATION forming part of Letters Patent No. 678,208, dated July 9, 1901. Application filed June 16, 1900. 'Serial No. 20,604. (No model.)

To aZZ whom it may concern:

Be it known that I, CHARLES H. 'WAY, a citizen of the United States, residing at the city of Lansing, in the county of Ingham and State of Michigan, have invented certain new and useful Improvements in Inclosed-Arc Lamps, of which the following is a specification.

This invention relates to improvements in inclosed-arc lamps.

The objects of the invention are, first, to provide a simple and compact structure of arc-lamp which is effective and satisfactory in use; second, to provide an arc-lamp which is easy to trim; third, to provide an improved feed mechanism for'an arc-lamp; fourth, to provide an improved inner-globe holder for an inclosed-arc lamp; fifth, to provide improved inclosing means for the arc; sixth, to provide an improved structure of arc-lamp in which the feed mechanism is thoroughly and efficiently protected from the heat of the are by an improved arrangement of the parts; seventh, to provide an improved upper-carbon holder and contact device 'and guide for the carbons; eighth, to provide an improved lower-carbon holder for an arc-lamp; ninth, to provide an improved wiring or electrical connection for an arc-lamp, and, tenth, to

provide an improved cut-out for an arc-lamp.

Further objects will definitely appear in the detailed description to follow.

I accomplish the objects of my invention by the devices, means, and mechanisms described in this specification.

The invention is clearly defined,an(1 pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, forming a part of this specification, in which Figure 1 is a vertical detail sectional elevation through my improved arc-lamp, taken on a line corresponding to line 1 1 of Figs. 2 and 6, the upper-carbon holder and clutch mechanism being shown in full lines. Fig. 2 is a vertical detail sectional elevation through my improved arc-lamp, taken at right angles to the view appearing in Fig. l that is, on a line corresponding to lines 2 2 of Figs. 1 and 6, portions being shown in full lines. Fig. 3 is a detail View of the coils,

' their connections, and of the cut-out mech anism, the casing F being removed and other parts being broken away, the View being taken from the right-hand side of Fig. 2. Fig. 4 is a similar detail View taken from the right-hand side of Fig. 1. Fig. 5 is a detail plan view taken on a line corresponding to line 5 5 of Figs. 1 and 2. Fig. 6 is a plan view of the entire structure appearing in Figs. 1 and 2, the illustration of the lower outer globe M being omitted. Fig. 7 is an enlarged detail sectional view through the upper carbon holder and its guiding-tube, the carbon being illustrated in full lines. Fig. 8 is a detail sectional view taken on line 8 8 of Fig. 4, illustrating the contact for the cut-out. Fig. 9 is a detail plan view of the ring-clutch. Fig. 10 is a diagrammatic illustration of the wiring or connection of my improved lamp. In the drawings all of the sectional views are taken looking in the direction of the little arrows at the ends of the section-lines, and similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the draw ings, A represents the top or top plate of my' improved arc-lamp.

O is the bottom plate separating the coils and controlling mechanism from the arc, ringclutch, and the globe below. The carbontube D extends between the plates A and O, and the outer tube B surrounds the same and is screw-threaded for joining plates A and O together. This forms the main frame of the lamp and holds the carbon-tube D securely in a central position, where it is protected by the supporting-tube B. The upper'plate A is provided with an insulated hook A at the top for suspending the lamp when a wire con nection is used with the binding-screws E E. This insulated hook is not necessary where the lamp is supported on rods, hooks being provided on the binding-posts E E for that purpose. A central boss or hub C is pro vided on the plate 0 to receive the screwthreads at the lower end of tube B. This is also formed square on top to receive the plates F F", which form a support for the magnetcoils of the lamp. The plate F is of soft iron, and the coils are secured in position by screws extending into the same. Between the plates F F is a packing-sheet A of asbestos. A top plate I of brass is provided for the top of the coils and is clamped down upon the same by the sleeve 13, the same being forced into position by a screw-threaded nut or ring B on the tube B. Hinged to this plate I by pivots n is a rocker-frame J, which carries the armatures J J for the pairs of coils G and II, respectively. A spring h is adjustably connected by the bolt h and thumb-nut h, which holds the armature and rocker-frame tipped toward the coils II. Between the coils G is a lever I), supported on a link 0, which is pivoted at O to the plate F below. This lever is connected by a link I) to the rocker-frame J above, and the inner end of the lever Z) is connected by a link to the ring-clutch K, the said link being made of two parts b and d, adjnstably secured together.

The clutch-ring K is perforated at the opposite end from the link, and plays freely on a pin K. It is forced normally downward by a suitable spring K, and is adjustable up and down on the said pin K by a screwthreaded nut. A cup-shaped piece L is socured to the under side of the plate 0 with a packing-sheet of asbestos between, the same being secured by suitable screws or bolts, as clearly appears in Fig. 2. An asbestos sheet is also above the plate 0.

A cap is provided to fit into the cup L, which is made up of a plate L and alternate layers of sheet metal and asbestosfgf g, the said parts being retained together by suitable screws therethrougb or by any other desired means. A shoulder is formed within the cup L, and its lower edge projects beyond and below the plate g, forming a little flange, and a round spring 6 is inserted within this flange to retain the plate L and the superimposed packing-sheets. This plate is perforated for the passage of the upper carbon, and the upper end of the inner globe L fits within the flange against the asbestos g at that point to form a tight joint. The lower-carbon holder N is perforated at the center and is supported by a pair of rods R R, which are drawn normally upward by means of coiled springs R R, acting upon the same, the upper ends of said rods R and the springs R being incased in tubes P P. The said tubes are insulated from the plate C and from the remaining parts of the machine, except the lo\\ 'er-carbon holder. The tube P is provided with an exterior layer of insulating material for its entire length.

A cap I is on the bottom of the carbonholder N and a layer of asbestos is placed within the same. A ring of asbestos is also in a suitable flange in the carbon-holder N, which also serves as the inner-globe holder, it being drawn upwardly against the globe L by the force of the springs B. By the arrangement of the asbestos packing above and below a substantially air-tight joint is formed on the globe.

The outer globe M is supported in any consee venient and usual manner, the method of sup porting the same not being here illustrated, as it does not pertain to the invention.

Within the carbon-tube D, I place the upper-carbon holder which is made up of a central tube D and an-outer tube D. The central tube is slitted and closely embraces the upper carbon 0. The outer tube is also slitted and little feathers or fingers press outwardly to insure contact with the carbon-tube B. The parts D D are soldered to a short piece of rod D, which sufficiently increases the weight of the carbon and its holder to insure its prompt action. The part D projects a little below the part I), so that it will contact with the flange formed by the inwardlyextending portions of the cup L at the point where the carbon passes into the same. This prevents all injury to the spring-contacts by preventing them from striking the stop.

The wiring is as follows: The terminals '1 and U are connected to the binding-posts E and E, respectively, and a switch, consisting of the members S S, is provided for cntting out the lamp or turning on the current. The member S is connected by a direct connection 'i to the binding-post E, through which the current passes when the lamp is cut out. A connection j extends from the binding-post E to the tube P, which connects directly to the lower-carbon holder, and a connectionj extends therefrom to the shunt-coils II and from thence through the connection j" to the clamping'plate I, which is connected to the carbon-tube and the upper carbon. A connection k extends from plate I to the magnetcoil G and thence at 79 to the switch member S. A switch Q, Q, one member of which is attached to the tube P and the opposite member of which is attached to the rocker-plate .I, but suitably insulated therefrom, connects by a connection 172 through a small resistance-coil in on the insulated tube P, through the connection on to the binding-post E. A connection Z is between the metallic portions of the tube 1 I to insure a full and free delivery of the current to the lower carbon. \Vhen it is desired to operate the lamp, the switch S S is opened. The current then passes from the bindingpost E and connections j downwardly to the tube R and through the rods R R and carbonholder N to the lower carbon 0'. The current thence passes up to the upper carbon 0 to plate I and out through the connections and the coils of the magnet G to the member S of the switch and thence to the binding-post E. The coil G being excited its magnet pulls the rocker-frame in that direction which actuates the ringclutch 1nechanisin, separating the carbons and striking the arc. The are continues to burn until it becomes elongated and the resistance is increased. This throws the current through the connection], through the shunt-coils 11, through the connection to the rocker-frame, and thence through the coils G and connec- IIO evaaos tionj, switch member S, and connection 21 to the binding-post E, in which instance the shunt-coil H creates sufficient magnetism to overcome the force of the coils G, which reverses the action of the clutch mechanism, allowing the upper carbon to feed downwardly. As soon as the resistance of the arc has decreased, the magnetism of the magnet G becomes strongest and the clutch is again put into action to strike or draw the arc. This is the normal action of the lamp.

When anything interrupts the flow of the current, such as the complete consumption of the carbon, the breaking of the same, or the breaking of the circuit through the lamp in any way, the spring h draws the rockerframe down to the position indicated in Fig. 1, when the switch Q Q is connected and the current passes from the tube P through the switch and the connection in and the resistance m and the connection on to the bindingpost E, and there is substantially no diminution of its strength. WVhen a new carbon is supplied or the accident repaired, the resistance at m is sufficient to cause a small part of the current to pass through the coil G when that circuit is completed and break the connection of the switch Q Qthat is to say, when the connections are complete and in order, carbons being supplied to the structure appearing in Fig. 10, there is sufficient resistance at m and in the circuit that is there formed to cause the current or a portion of it to pass through the circuit'j, tube P, rod R, lower carbon 0, upper carbon 0, plate I, connection the coils of the magnet G, and the connection 7a to cause the magnet G to act upon the rocker-frame to break the connection at the switch Q Q, when the current will assume its normal full force through the lamp, owing to the fact that the said connection at Q Q has been broken. It will thus be seen that the operation of the lamp is entirely automatic to protect itself and the means exceedingly simple in their application.

It will be observed by myimproved structure that it is a very simple matter to trim the lamp. The outer globe is preferably suspended by a chain or hinge, so that it can be easily disconnected and swung downwardly or to one side. The cap N is then removed, the lower carbon extracted, the upper carbon removed,the fresh carbon inserted up through the lower-carbon holder into the carbon-tube above, and pressed firmlyinto its seat. The piece or upper carbon that was removed is then inserted up through the lower-carbon holder, and the cap I is then put in position. The inner globe is easily removed to permit the manipulation by pulling down the lower plate N, the springs R yielding for that purpose. When the carbons are inserted, of course the outer globe can be put in position. It is possible to use my improved lamp without any outer globe at all, though of course the outer small space around the upper carbon and out around the connections d being the only communication with the outer air, and this is so much interrupted that there is substantially no change of air within the globe after the current is turned onto the lamp.

I have described all the various parts of my improved arc-lamp in detail; butI desire to remark that many variations are possible. I have shown the same in the form which Ibelieve best adapted for the purpose, and Ihave shown a particular style of adj ustment wherever adjustments seem to be desirable. Other means might be employed for effecting such adjustments, and the connections might be differently formed. Where I have shown parts constructed of several pieces,I am aware that they might in many instances be constructed of a single piece, and where I have shown single-piece constructions I am aware that the parts might be divided, and possibly some advantage might be obtained in that way.

Myimproved globe construction and holder and connection with the lower-carbon holder might be made use of in connection with other styles of feed mechanism in the upper part of the lamp, and the feed mechanism I make use of might be used with other styles of lowercarbon holders. I show a particular form of contact device for the upper carbon which I believe possesses merits over any other; but I am aware that such connection might be otherwise effected. I also desire to remark that other styles of automatic switch might be provided for use in my improved lamp, though the form I have shown I believe possesses merit over any other. I have mentioned the possibility of these modifications, so that it will be distinctly understood that certain of my claims hereinafter presented will embrace modified constructions. I desire, however, to state that I also wish to claim the particular specific form in which I have illustrated my invention, as I believe it to possess merits over any other.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an arclamp, the combination of a top plate A; the bottom plate 0; electrical connections on the top plate; a vertical carbontube; a sleeve or tube surrounding the carbon-tube and connecting the top and bottom plates together; disks resting on a central plate, one of which is of soft iron; electromagnets resting on said soft-iron plate; a brass plate or yoke I resting on the tops of said electromaguets; a sleeve B on the tube B; and a screw-threaded ring B to clamp the same down upon the plate or yoke I to IIO hold the parts securely in position; a rockerframe pivoted at n on the plate or yoke I; a spring throwing the rocker-frame normally downward upon the shunt-coils; a ring-clutch; connections therefor to the rocker-frame; a carbon within the carbon tube; a holder therefor with suitably-expanded fingers or feathers to contact with the interior of said tube; a cup-shaped portion under the plate 0 to incase the ring-clutch; a cap for the bottom of said cup suitably perforated for the passage of the upper carbon; a lower-carbon holder N; rods R, R, connected thereto and extending upwardly through the plate C; springs R, R to force the said rods normally upward to draw the carbon-holder upwardly against the lower end of the globe; a detachable cap N for the lower end of the lowercarbon holder; and a globe held between the lower-carbon holder and cap; asbestos packing for the joints; and asbestos sheets between the arc and the upper portion of the lamp to protect the same from the heat, all coacting substantially as described for the purpose specified.

2. In an arc-lamp the combination of a top plate A; the bottom plate 0; electrical connections on the top plate; a vertical carbontube; a sleeve or tube surrounding the carbon-tube and connecting the top and bottom plates together; disks resting on a central plate, one of which is of soft iron; electromagnets resting on said soft-iron plate; a brass plate or yoke I resting on the tops of said electromagnets; a sleeve B on the tube B; and a screw-threaded ring 3 to clamp the same down upon the plate or yoke I to hold the parts securelyin position; a rockerframe pivoted at n on the plate or yoke I; a spring throwing the rocker-frame normally down ward upon the shunt-coils; a rin g-clutch; connections therefor to the rocker-frame; a carbon within the carbon tube; a holder therefor with suitably-expanded fingers or feathers to contact with the interior of said tube; a cup-shaped portion under the plate 0 to incase the ring-clutch; a cap for the bottom of said cup suitably perforated for the passage of the upper carbon; a lower-carbon holder N; rods R, R, connected thereto and extending upwardly through the plate 0; springs R, R, to force the said rods normally upward to draw the carbon-holder upwardly against the lower end of the globe; a detachable cap N for the lower end of the lowercarbon holder; and a globe held between the lower-carbon holder and cap; asbestos packing for the joints, all coacting substantially as described for the purpose specified.

3. In an arc-lamp, the combination of a top plate A; the bottom plate 0; electrical connections on the top plate; a vertical carbontube; a sleeve or tube surrounding the car hon-tube and connecting the top and bottom plates together; disks resting on a central plate, one of which is of soft iron; electromagnets resting on said soft-iron plate; a brass plate or yoke I resting on the tops of said electromagnets; a sleeve B on the tube B; and a screw-threaded ring B to clamp the same down upon the plate or yoke I to hold the parts securely in position; a rockerframe pivoted at n on the plate or yoke I; a spring throwing the rocker-frame normally downward upon the shunt coils; a ringclutch; connections therefor to the rockerframe; a carbon within the carbon-tube; a holder therefor with suitably-expanded fingers or feathers to contact with the interior of said tube; a cup-shaped portion under the plate 0 to incase the ring-clutch; a cap for the bottom of said cup suitably perforated for the passage of the upper carbon; a lowercarbon holder N; rods R, R, connected thereto and extending upwardly through the plate 0; springs R, R, to force the said rods normally upward to draw the carbonholder upwardly against the lower end of the globe; a detachable cap N for the lower end of the lower-carbon holder; and aglobe held between the lower-carbon holder and cap, all coacting substantially as described for the purpose specified.

4. In an arc-lamp, the combination of a top plate A; the bottom plate 0; electrical connections on the top plate; a vertical carbontube; a sleeve or tube surrounding the carbon-tube and connecting the top and bottom plates together; disks resting on a central plate, one of which is of soft iron; electromagnets resting on said soft-iron plate; a brass plate or yoke I resting on the tops of said eleotromagnets; a sleeve 13 on the tube 13; and a screw-threaded ring B to clamp the same down upon the plate or yoke I to hold the parts securely in position; a rockerframe pivoted at n on the plate or yoke I; a spring throwing the rocker-frame normally downward upon the shunt coils; a ringclutch; connections therefor to the rockerframe; a carbon within the carbon-tube; a holder therefor with suitably-expanded fingers or feathers to contact with the interior of said tube; acup-shaped portion under the plate 0 to incase the ring-clutch; a cap for the bottom, of said cup suitably perforated for the passage of the upper carbon; a loweroarbon holder N; rods R, R, connected thereto and extending upwardly through the plate 0; springs R, R, to force the said rods normally upward to draw the carbon-holder upwardly against the lower end of the globe; and a globe held between the lower-carbou holder and cap, all coaoting substantially as described for the purpose specified.

5. In an arc-lamp, the combination of a suitable framework; a ring-clutch mechanism for controlling the feed; a vertical carbon tube in the lamp; a holder for the carbon consisting of concentric tubes, the inner one of which is adapted to grasp the carbon and the outer one of which is expanded to contact with the inside of the tube; a lower-carbon holder; a springconnection therefor to hold it normally upward; a globe to be clamped between the lower-carbon holder and a portion of the lamp above; a detachable cap on the lower-carbon holder whereby the carbons can be renewed by merely removing the said detachable cap and asbestos packings between the parts, coacting for the purpose specified. V

6. In an arc-lamp, the combination, with a suitable framework, of a clutch mechanism for controlling the feed; a vertical carbontube within the lamp; an upper holder for the carbon adapted to fit and feed in said tube; a lower-carbon holder with a perforation in line with the carbon-tube; a cap for the bottom of the lower-carbon holder, so that the same can be opened for the insertion of the carbons, and whereby the carbons can be renewed by merely removing the said detachable cap, for the purpose specified.

7. In an arc-lamp the combination of the feed mechanism; a plate below the same; an inverted cup secured to the underside of the plate; a clutch-ring within the cup; a cap below said clutch-ring fitting into the cup, consisting of layers of metal and asbestos; and a globe-holder for clamping the globe against the said cap, for the purpose specified.

8. In an arc-lamp, the combination of a carbon-tube; a holder within the carbon-tube consisting of an inner tube D adapted to clasp the carbon; an outer tube with fingers D adapted to press against the interior of the carbon-tube, and shorter in length than the tube D; and a suitable stop to engage the inner tube at the end of its downward movement, for the purpose specified.

9. In an arc-lamp, the combination of a carbon-tube; a holder within the carbon-tube consisting of an inner tube D adapted to clasp the carbon; an outer tube with fingers D adapted to press against the interior of the carbon-tube, for the purpose specified.

19. In an arc-lamp the combination of a top plate A 3 a bottom plate 0 a carbontube; a sleeve or tube surrounding the same and screw-threaded to connect the plates together; a soft-iron plate; electromagnets resting on said plate; a yoke resting on said magnets to couple the same together; a sleeve or tube 13 surrounding the connecting-tube and a screw-threaded collar B to force the same down and clamp the yoke in position, for the purpose specified.

11. In an arc-lamp, the combination of the carbon-holders the magnets G and the shuntmagnet H; the rocker-frame .I with armatures J J thereon; a spring h to tip the rocker-frame toward the shunt-magnet II; a lever 19; a link Z) connecting the same to the rocker-frame; a link connecting the opposite end of said lever to the clutch-ring K; a spring K holding said clutch-ring normally downward; and suitable electric connections through said coils and carbon-holders for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

CHARLES H. WAY. [L. s]

Witnesses:

HUGH LYONS, H. D. LUoE. 

